topic Re: How to load a raster back into a raster dataset without file I/O? in ArcObjects SDK Questions

How to load a raster back into a raster dataset without file I/O?

MichaelEber — Thu, 30 Jan 2014 13:45:00 GMT

I have this fairly complex routine running as a service. All was well right up until I called one of the methods and instead of returning a RasterDataset as an IGeoDataset it returned an IRaster as the IGeoDataset. I need a consistent way of passing this modified raster throughout the code and I was using a RasterDataset for doing that. But no matter what I do I cannot get that modified raster into the dataset without (apparently) saving it to disk. I want to avoid this since File I/O on a service is evil. And ESRI doesn't have modern software so it does not take a stream as input for loads preventing me from using a memory stream.

So any suggestions on how to load the modified raster back into the RasterDataset without saving to disk?

Re: How to load a raster back into a raster dataset without file I/O?

ErinBrimhall — Mon, 03 Feb 2014 18:54:56 GMT

Have you looked at the SaveAsRasterDataset method off the ISaveAs2 interface?

Also, the IRaster2 interface has a RasterDataset property, which might be what you're looking for.

Re: How to load a raster back into a raster dataset without file I/O?

MichaelEber — Mon, 03 Feb 2014 18:59:36 GMT

I was trying to avoid doing any saving. Typically, in a normal server environment, doing a file write causes a lock on the mutex which momentarily halts all services running on the server.

But the IRaster2 interface looks like it is just what I was looking for....assuming that RasterDataset isn't null. 🙂

Thank you!